<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>五子棋 - 欢迎</title>
    <style>
        body {
            font-family: 'Microsoft YaHei', sans-serif;
            background-color: #f5f5f5;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            background-image: url('https://images.unsplash.com/photo-1547891654-e66ed7ebb968?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
            background-size: cover;
            background-position: center;
        }
        
        .container {
            background-color: rgba(255, 255, 255, 0.9);
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
            padding: 40px;
            text-align: center;
            width: 350px;
        }
        
        h1 {
            color: #333;
            margin-bottom: 30px;
            font-size: 28px;
        }
        
        .logo {
            font-size: 48px;
            margin-bottom: 20px;
            color: #333;
        }
        
        .btn {
            display: block;
            width: 100%;
            padding: 12px;
            margin: 15px 0;
            border: none;
            border-radius: 5px;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .btn-login {
            background-color: #4CAF50;
            color: white;
        }
        
        .btn-login:hover {
            background-color: #45a049;
        }
        
        .btn-register {
            background-color: #2196F3;
            color: white;
        }
        
        .btn-register:hover {
            background-color: #0b7dda;
        }
        
        .description {
            margin-top: 30px;
            color: #666;
            font-size: 14px;
            line-height: 1.5;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="logo">⚫⚪</div>
        <h1>欢迎来到五子棋世界</h1>
        
        <a href="login.html" class="btn btn-login">登录</a>
        <a href="register.html" class="btn btn-register">注册</a>
        
        <div class="description">
            <p>五子棋是一种两人对弈的纯策略型棋类游戏，目标是先在横、竖或斜方向上形成连续的五个棋子。</p>
        </div>
    </div>
</body>
</html>
